Comparison

SOS Online Backup vs R2Drive

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SOS Online Backup

Securely back up and restore data from your mobile devices, laptops, and remote offices to the cloud. Protect your information against accidental deletion, device loss, or cyberattacks. Access and manage your backed-up files from any device.

Highlights
  • Direct-to-cloud backup
  • Data recovery
  • Cross-device access
  • Protection against data loss
  • Mobile, laptop, and office support
Features
Read full description

SOS Online Backup is a direct-to-cloud backup and recovery solution for mobile devices, laptops, and remote offices. With SOS Online Backup, you can protect data on your devices against accidental deletion, malicious attacks, or device loss. SOS Online Backup for iOS lets you: - Back up data from your device and store it in the cloud. - Access and browse your data backed up from the current device or any other devices you use. - Restore your data backed up from the current device or from any other devices you use.

About

R2Drive

Features
Read full description

R2 Drive is a file manager for S3-compatible cloud storage services including Cloudflare R2, AWS S3, MinIO, and more. FEATURES • Browse, upload, download, and delete files • Create and manage folders • Copy and move files across buckets • Upload directly from camera, photo library, or Files app • Image preview with pinch-to-zoom • Switch between multiple connection profiles • Auto setup with Cloudflare API token • Usage tracking (Class A/B operations) • Cache-Control header presets for uploads SUPPORTED SERVICES • Cloudflare R2 • AWS S3 • MinIO • Any S3-compatible storage SECURITY All credentials are securely stored in the iOS Keychain. No data is sent to third-party servers. Note: An S3-compatible storage account is required to use this app.

Screenshots

SOS Online Backup4 screens
R2Drive4 screens

Verdict

The call

The clearest difference is update cadence: R2Drive at every 2 days against SOS Online Backup's every 8 months. SOS Online Backup's advantage is iOS requirement (12.3 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SOS Online Backup ships an update every 8 months, R2Drive every 2 days. The most recent releases landed on September 19, 2026 and May 21, 2026 respectively.

Scorecard2 real differences Ā· 6 level
SOS Online Backup versus R2Drive: the parameters behind the verdict, then further details
ParameterSOS Online BackupR2Drive
PriceFreeFree
Positive reviews22.2% of reviews—
Update frequencyEvery 8 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.3 — better18.0
Further details — not scored
Size10 MB15 MB
Age rating4+4+
DeveloperInfrascale, Inc.Kazuki Higashi

In-app purchases

None

SOS Online Backup

No in-app purchases

None

R2Drive

No in-app purchases

Questions

Is SOS Online Backup free?
SOS Online Backup is free to download, with no in-app purchases.
Is R2Drive free?
R2Drive is free to download, with no in-app purchases.
Do SOS Online Backup or R2Drive have ads?
Neither SOS Online Backup nor R2Drive shows ads.
Which is updated more often, SOS Online Backup or R2Drive?
SOS Online Backup ships an update every 8 months, and R2Drive every 2 days. Most recently, SOS Online Backup was updated on September 19, 2026 and R2Drive on May 21, 2026.

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